A modern programming language that makes developers happier.

kotlinlang

What is the difference between `rememberSavable` and `savedInstanceState`. Both are mentioned in <https://developer.android.com/jetpack/compose/state>. They look like they do the same thing.

The latter was deprecated for the former in the most release.

&gt; Similarly to how we previously removed `state { 0 }` composable and now promote usage like `remember { mutableStateOf(0) }` we are going to remove `savedInstanceState { 0 }` composable. You should use `rememberSaveable { mutableStateOf(0) }` instead and it will save and restore automatically if the type used inside the MutableState can be stored in the Bundle. If previously you were passing a custom saver object now you need to use a new overload of rememberSaveable which has `stateSaver` parameter. The usage will look like this: `val holder = rememberSaveable(stateSaver = HolderSaver) { mutableStateOf(Holder(0)) }` 

<https://developer.android.com/jetpack/androidx/releases/compose-ui#1.0.0-beta01>